Improvement in reapers and mowers



UNITED `STATES l PATENT OFFICE.

GEORGE A. STEPHENSON, OF PAI/V PAIV, MICHIGAN.

IMPROVEMENT IN REAPERS AND MOWERS.

Specification formingpart of Letters Patent No. 30,262!2 dated October '2, 1860.

o all whom it may concern:

Be it known that I, GEORGE A. STEPHEN- soN, of Paw Paw, in the county of Van Buren and State of Michigan, have invented certain new and useful Improvements in Reapers and Mowers, and I do hereby declare that the 'following is a full, clear, and exact description of the same, reference being had to the anneXed drawings, and to the letters of reference marked thereon.

My invention relates to an improvement of the metal harvester-frame, as hereinafter described.

Ihe object ol' my invention is to secure lightness and economy in construction and a simple means of adjustment of the sicklebperating mechanism. Y

Figure l is a side view of the machine with the driving or master wheel removed. is a plan view. cutter-bars. y

In the iigures, A represents the platform for receiving the falling grain, which is hinged to a metallic frame-bar, B. This platform may be removed, when it is desired to convert the machine into a mower, by simply unhingin'g it from the bar B. The cutter-bars are connected toand held in place by suitable guides, which are secured to the said bar B. One end of the bar B is supported by a wheel, J, while Figs. 3 and -l are views of the the other end is supported by the driving or master wheel L, as shown in Fig. 2, although said masterwheel does not connect to it directly.

D D represent two metallic guides in the form o f loops, as seen, which are firmly secured to Vthe bar B at their rear ends. The shaft of the cam-wheel E passes `across from one of these guides to the other, resting and having its bearings in the loops of said guides.

it represent pins which pass through the guides on each side of the shaft of the wheel E, and serve to keep it in proper position.

It will be readily seen that the position of the wheelE may be changed by sliding its shaft in the loops of the guides D.

a a represent guides, also, which are secured to guides D D. These also make loops, and are in the form represented in Fig. l.

to communicate motion to said wheel.

F represents a lever, pivoted at and connected at one end to the cutter-bar. rIhe other end of said lever is forked, having frictionrollers upon each fork. The cam-wheel works between the forks of this lever and gives it a reciprocating motion, causing the cutter-bar to vibrate longitudinally in the usual manner.

, The cutter-bars are provided with cutters upon both sides, which are so beveled that the said bars may be reversed or turned over for cutting with one side when the cutters of the other side become dull.

It will be seen that by changing the position -of the driving-wheel and the cam-wheel E the machine may be elevated or lowered, and that more or less leverage may be applied to the cutter-bars by lengthening or shortening the lever F to correspond with the change of the position of the canrwheel E. Considerable cha-nge may be made in the positions of the two wheels above mentioned without affecting the gearing of the wheel m into the pinion s.

I am aware that metal loops have been used for guides to adjust the height of the axle of the main wheel; but this I do not claim; but

The combination oi' curved loops D D, forming the main frame, with the finger-bar B, cam-wheel E, with its adjustable journal-boxes and pins t' t', when the parts are constructed, arranged, and operated as described.

GEO. A. STEPIIENSON.

IVitnesses: l

ROBERT ORE, VILLIAM LONG. 

